Description
ParkTool CNW-2 Chainring Nut Wrench
ParkTool CNW-2 Chainring Nut Wrench makes chainring bolt and nut installation and removal easier. It securely holds slotted chainring nuts in place, so they do not spin while you tighten or loosen the bolt. As a result, it gives you better control and a cleaner, more reliable fit during chainring service.
Fit and compatibility
CNW-2 is double-ended and fits most slotted-type chainring nuts, including Campagnolo chainring nuts. The outer width of both ends is nominally 12 mm, which gives it broad compatibility with common chainring hardware. Therefore, it suits many drivetrain maintenance tasks on road and performance bikes.
Tool dimensions
One end has two outer tips that are nominally 2.7 mm wide each, while the other end has tips that are 3.8 mm wide each. The blade thickness is nominally 1.35 mm, which helps it fit into the relevant chainring nut slots. In addition, the narrow profile supports precise engagement when working in tight crank areas.
Use case
This tool is useful for mechanics and home users who need to hold chainring nuts steady during bolt installation or removal. It helps prevent slipping, which lowers the chance of damage and makes servicing faster. For regular drivetrain work, ParkTool CNW-2 offers a simple and dependable solution.
